| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 4.554 (kb) | 4.118 (kb) | 0.904 | − | 5.285 (b) | 6.616 (b) |
| 2 | (n,elastic) | 6.939 (b) | 7.475 (b) | 1.077 | − | 2.951 (b) | 3.823 (b) |
| 4 | (n,inelastic) | ( E-thr = 21.68 keV ) | 499.3 (mb) | 2.497 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.986 MeV ) | 1.825 (b) | 2.579 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.45 MeV ) | − | 2.684 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 6.523 (μb) | 350.0 (μb) | 295.5 (nb) |
| 24 | (n,2na) | ( E-thr = 5.734 MeV ) | 160.2 (nb) | 187.7e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 4.923 MeV ) | 415.2 (μb) | 123.9 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.72 MeV ) | 199.9e-12 (b) | 366.8e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 10.34 MeV ) | 29.06e-12 (b) | 60.62e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 12.96 MeV ) | 631.5e-18 (b) | 21.50e-12 (b) | |||
| 102 | (n,γ) | 4.547 (kb) | 4.111 (kb) | 0.904 | 2.240 (kb) | 884.4 (μb) | 294.2 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 44.27 (μb) | 4.749 (mb) | 3.162 (μb) |
| 104 | (n,d) | ( E-thr = 2.684 MeV ) | 1.590 (mb) | 389.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.425 MeV ) | 36.33 (μb) | 9.229 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.484 MeV ) | 10.35e-12 (b) | 379.7e-15 (b) | |||
| 107 | (n,a) | 4.566 (μb) | 4.163 (μb) | 0.912 | 106.7 (μb) | 2.484 (mb) | 5.940 (μb) |
|
These cross sections are calculated from JENDL-4.0 at 300K.
The background color of each cell noted a cross section means the order of the cross-section value.
The unit of cross section, (b), means barns, and SI prefixes are used as following.
(kb) → 103(b), (mb) → 10−3(b),
(μb) → 10−6(b), (nb) → 10−9(b).
MT is a number that defines a reaction type. For the relation between MT and reaction type, please see here or refer to the manual of ENDF formats.
Maxwellian Average :
where T denotes the temperature, and kB the Boltzmann constant.
The upper and lower limits of integration, EL and EU
are set to 10−5 eV and 10 eV, respectively.
Resonance Integral :
with EL = 0.5 eV and EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
with EL = 10−5 eV and EU = 20 MeV.
The parameters a and b are 0.988 MeV and 2.249 MeV−1, respectively.
Westcott g-factor :
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